. >> you even do fun experiments to educate them, for example? >> i do. you take a piece of colored construction paper, put it outside for a couple hours, you put a key, some objects on it and they can see how the sun fades it. and it's a good way to show them that there are these powers at work we can't see. >> well, it's great advice, it's great to read about your journey. glad you're doing so well today. >> thank you. >>> and coming up next, a live >> thank you. >>> and coming up next, a live performance from ellie. it's heavy lifting. you start with a democratic senator named ben. by getting bwi-marshall funding for new runways, he's helping us serve 21 million passengers a year, which helps keep 100,000 jobs that depend on the airport, and that means more cargo for more businesses and more skycaps unloading more taxis... welcome to bwi. ...carrying families with more luggage. thanks. it's like he's out here with us. he's my friend, ben. i hope he's your friend, too. i'm ben cardin, and i approve this message. ♪ >>> the toyota concert series on "tod